EXTCDI-305 do qualifier check only for EntityManagers

Other beans can have any Qualifier. 
This commit also fixes the ending of the TransactionContext to allow using
fresh transactions in a @PreDestroy of @TransactionScoped beans.


git-svn-id: https://svn.apache.org/repos/asf/myfaces/extensions/cdi/trunk@1440724 13f79535-47bb-0310-9956-ffa450edef68